Improvement in mitee-boxes



@uitrit faire atrnzt fitta- GLARK'ROBINSON, or Fox LAKE,WISCONSIN.v

Leim maar No. 77,217, dated April- 28, 186e.y

IMPROVEMENT IN MIIRE-BOXES.

tlgt tlgehtle rifarsi it in time 'Estas' rtert mit mating artist 'itstane.

TOALL WHOM IT MAY CONCERN: v l

Beit known that I, CLARK ROBINsoN, of Fox Lake, in the county of Dodge,inthe -State of Wisconsin, have invented an Improved Mitre-Box; andiIdhereby declare that the following is a full and exact descriptionthereof, reference being had to the accompanying drawings, and to theletters of reference marked thereon, making a part of thisspecification, in which Figure 1 is a view of the under side of the box,showing the devices for setting it for cutting dierent angles.

Figure 2, a longitudinal elevation of the same.

Figure 3, a top view. c

My invention relates to thatclass of mitre-boxes arranged to be set soas to cut angles in horizontal and vertical planes; and its natureconsists in the useI of slotted standards, pivotedto blocks made-toslide on rods, put longitudinally with the box, and held together bylmeans of bara-through which rock-slots are made to receive a rod madeadjustable by nuts, so that said stan'dards may be set to or from eachother for cutting an angle in a vertical plane, and be inclined on thesame angle with each other for cutting a bevel at the-same time, andslotted rods arranged to swing on a centre pivot, and to slide on pinsput in the blocks, to which thc' standards are pivoted, and to besecured at their intersections by nuts or set-screws, and thus permitthe standards to be adjusted and then held in position. l

To enable otherssliilled in the art to make and use my invention, I havemarked corresponding parts with similar letters, and'will give adetailed description.

A represents a wooden bottom, Awhich supports my devices, and can bemade of such width and length as will suit the size of moulding to becut. K shows metal rods fastened at their ends to the legs H, and usedfor blocks D to slide on, they having holes through them for thispurpose, and also pins projecting outward at their under sides, as seenat P, iig. 1, for keeping the slotted ends of the rods N in position,and are pivoted to standi ards C, g.1,at I. I

These standards can be made of wood or metal, (the former being thebest,) and should have slo'ts, F, made in the parts projecting above thebottom A with rounded corners, figs. 2 and`3, in order that a saw mayworli easily'when said standards are-set in dili'erent positions, asindicated at the latter gure by V V.

`The slotted parts of the standards may, however, be set in sockets inthe lower parts, mwhich case slot not'rounded will answer the purpose. pl

The lower ends of the standards C are rigidly attached to cross-bars BB, fig. I, having rock-slots, as vseeli at a a, iig. 2, made throughthem for supporting an adjusting-rod, L and permitting said standards tobe inclined, as seen at red lines b, as when a bevel is to be cut. Thisrod is held in place by set-screws J J in .the slots a, and at the'middle, on a slotted support, S, rigidly attached to block E, fastenedto the under side of the bottom, A, the rod L also having a slot, asseen at iig. 2, through which a set-screw, U, is put and arranged toslide in the support S when the standards are being inclined, 'and tohold them in place when set-on the required angle;

Slotted rods N are pivoted to the upper part' of the support S, and areused to keep the standards Cl an equal distance apart; and toaccomplishthis, slots aremade through their ends, and arranged to slide on pins,

P,g. 1, the support S operating as an axis, and has a screw-thread, onwhich is tnrneda nut, R, for' holding the rods in place when saidstandards are set.

` Operation.

AIt will bessen from this description that the standards C can bemovedtoward each other, as seen by red lines V V, iig. 3, by loosening thenuts U, J J, and R, and will be firmly held in place when said screwsare tightened; and, further, that they canb'e inclined, las seen by redlines by loosening the screw the rocka slots a in the bars B permittingthe latter to turn. The moulding to be cut should be put on the bottom,A, and the saw in the slots F, the angle being determined by a scale orbevel, as most convenient,

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States, is d 1. The combination ofstandards C, cross-bars B, and rodL, constructed to operatesubstantially as described.

2. The combination of rods N, support S, rod L, blocks D, and rods K,constructed to operate substantally as set forth.

CLARK ROBINSON.

Witnesses:

JOHN WEED, A H. B. PIERCE.

